KR102195442B1 - Fuel pump module with detachable controller - Google Patents

Abstract

The present invention relates to a fuel pump module with a detachable controller. More specifically, the present invention provides a fuel pump module with a detachable controller, wherein the controller is modularized to be integrally formed, and can be attached and detached to facilitate repair or replacement in case of failure or damage. In particular, according to the present invention, the fuel pump module with a detachable controller is provided, wherein the controller can be easily attached and detached, and is resistant to vibration and shock. Moreover, airtightness for preventing oil vapor penetration is secured, and at the same time, expandability and compatibility can be increased.

Description

Fuel pump module with detachable controller}

The present invention relates to a fuel pump module capable of attaching and detaching a controller, and more specifically, a controller is modularized and formed integrally, but by allowing the controller itself to be attached and detached, repair or replacement is facilitated in case of failure or damage. It relates to a possible fuel pump module.

A fuel pump module is installed in the fuel tank of the vehicle to deliver the fuel stored therein to the injector of the engine. These fuel pump modules include a fuel pump, a filter that removes impurities by filtering the fuel pumped by the fuel pump, a reservoir cup in which the fuel pump and filter are installed inside the fuel tank, and the fuel pump is a reservoir cup. It may be configured to include a bracket fixed to the fuel pump and a flange (or holder cap) for fixing the reservoir cup to the fuel tank.

The fuel pump module is also provided with electronic components that control the operation of the fuel pump, and generally these are collectively referred to as a controller. A board is basically provided inside the controller, and circuit wiring for signal calculation as well as a MOSFET for driving a motor are formed, and terminals for transmitting and receiving signals to and from the fuel pump are connected. In this way, several electronic components connected to the board are bundled together to be referred to as electric parts. Of course, the controller further includes a storage unit for accommodating an electric unit including a substrate and a heat dissipation unit for dissipating heat generated from the substrate to the outside, in addition to the electric unit.

These controllers are generally fixedly connected to the flange by press-fit, soldering, or the like. That is, for example, the housing unit and the flange are integrally molded, and the electronic unit is assembled by placing a substrate or the like in the housing unit, and the heat dissipation unit is assembled on the electric unit, thereby completing the production of a controller integral with the flange. In this way, when the controller and the flange are completely integrally formed at the time of production, the number of parts and assembly man-hours can be reduced during production, thereby increasing production efficiency, but during operation, it is impossible to separate when damage or failure occurs. Therefore, there is a problem that is difficult to repair or replace.

In Korean Patent Registration No. 1559123 ("Plate Separation Type Control Device", 2015.10.02., hereinafter'prior literature'), in order to solve the above-described problem, the controller is manufactured in the form of a separate module and is in the form of a hook on the flange. By allowing the assembly to be assembled, it discloses a technology that allows only the controller to be easily separated and repaired or replaced in case of damage or failure. More specifically, in the prior literature, an insertion hole is formed that is recessed downward on the flange (plate), and the lower end of the controller (control device) is formed to be inserted into the insertion hole, and a hook portion and a controller protruding from the inner wall of the insertion hole The sealing part formed at the lower end is made to be coupled or separated by rotation.

In the prior literature, the structure connecting the substrate of the controller and the terminal of the fuel pump is also changed in order to introduce a rotary coupling structure. Of course, such a structural change inevitably occurs during the design improvement process, but if it is manufactured according to the changed design, compatibility other than the structure according to the design is inevitably lowered. Considering this point, scalability must be considered when designing a structural change, but the rotational coupling structure is difficult to say that the scalability is actually very high.

In addition, the rotational coupling structure is of a structure capable of rotating movement naturally due to its structural characteristics. At this time, for smooth rotational motion, there is inevitably a slight gap between the parts. In particular, in the case of a vehicle in which external vibration or shock occurs very often, vibration and shock inevitably occur between fuel pump module parts due to such clearance, and it is obvious that this causes damage to the parts. In other words, the rotary coupling structure itself is a structure that is inevitably vulnerable to vibration and shock.

On the other hand, one of the design factors that must be considered important in the controller is the infiltration problem of oil vapor and moisture. The fuel pump inevitably generates oil vapor, and environmentally, there are many cases where the humidity around the fuel pump increases. When such oil vapor or moisture penetrates into the controller, problems such as defective operation or damage to electronic components may occur. Therefore, it is very important that the controller forms airtightness with the outside. For example, in the prior literature, the problem that the oil vapor coming from the fuel tank penetrates the controller by making the housing part of the controller made of a mixture of engineering plastics and fibers that are difficult to penetrate/absorb/permeate fuel or oil vapor is solved. It is described.

That is, in summary, in designing a controller structure that can be attached and detached, the most fundamentally, ease of attachment and detachment should be considered. In addition, it should be made of a structure that is resistant to vibration and shock, expandability and compatibility should be considered for economical and productivity improvement, and airtightness for preventing oil vapor penetration should be considered.

1. Korean Patent Registration No. 1559123 ("Plate separation type control device", 2015.10.02.)

Therefore, the present invention was conceived to solve the problems of the prior art as described above, and an object of the present invention is to make the controller modularized and formed integrally, but the controller itself can be attached and detached, thereby repairing or It is to provide a fuel pump module that can be attached to and detached from a controller to facilitate replacement. In particular, an object of the present invention is to provide a fuel pump module capable of attaching and detaching a controller, which is easily detachable, is resistant to vibration and shock, has airtightness for preventing oil vapor penetration, and has a structure with high expandability and compatibility. .

A fuel pump module capable of attaching and detaching the controller of the present invention for achieving the above object is a fuel pump in which the controller 100 is detachably formed on the flange 200 that fixes the fuel pump and the reservoir cup to the fuel tank. In the module, a terminal portion 210 is formed on the flange 200 so that the terminal 213 protrudes forward, and the controller 100 slides forward and backward to form a rear end of the controller 100. The flange connector 110 is formed to be coupled to the terminal portion 210, and at least a pair of terminal portion locking hooks 115 formed to protrude rearward from the left and right ends of the rear end of the flange connector 110 and the left and right sides of the terminal portion 210 A terminal portion locking structure including at least a pair of terminal portion locking projections 215 protruding from the left and right to each other, wherein the terminal portion locking hook 115 and the terminal portion locking projection 215 are fixed by engaging each other; The controller 100 is formed on the guide portion engaging projection 125 and the flange 200 protruding in the left and right directions at a preset position on a pair of rail units 120 extending in the front and rear directions on both sides of the lower end of the controller 100 And at least a pair of guide portions 220 formed to be slidably movable by being fitted with the rail portion 120, and formed to be fixed by locking the guide portion engaging projection 125 to the guide portion 220 Guide part locking structure; It may include.

At this time, the controller 100 is formed in a form extending in the front and rear direction, and includes a controller body 150 in which an electrical unit for signal transmission and reception and control calculation is accommodated, and a vehicle-side connector formed in front of the controller body 150 ( 130), and the rail unit 120 may be formed on the controller body 150 to extend over the entire controller body 150.

In addition, at this time, the terminal part 210 is formed in the form of a protruding part 211 protruding upward from the flange 200, a case in which the front surface is open, and formed on the upper end of the protruding part 211, and the flange connector in the open front. (110) It may include a fitting portion 212 formed so that the rear end is fitted, and the terminal 213 formed in the fitting portion 212 and connected to a fuel pump to transmit and receive signals.

In addition, the terminal portion engaging protrusion 215, when the flange connector 110 and the terminal portion 210 are coupled, the terminal portion engaging hook 115 is caught and fixed to the terminal portion engaging protrusion 215, the controller 100 To permit the rear sliding movement and to regulate the forward sliding movement, the front end of the terminal engaging projection 215 is formed in an inclined shape, and the rear end of the terminal engaging projection 215 is vertical to the rear end of the terminal engaging projection 215 It may be formed in an inclined shape with an inclination angle greater than the inclination angle. In addition, the controller 100 may include an airtight rib 111 protruding around the flange connector 110 in the circumferential direction.

In this case, the controller 100 may include an airtight O-ring 112 disposed in front or rear of the airtight rib 111.

In addition, in the fuel pump module, the rail part 120 is formed to extend horizontally by bending from the end of the rail part vertical part 121 and the rail part vertical part 121 formed to protrude vertically downward of the controller 100 It has a cross section of a "b" shape including the rail part horizontal part 122, and is formed to extend to a length corresponding to the total length in the front and rear direction of the controller 100, and the guide part 220, the flange 200 ) It has a "A" shaped cross section including a guide part vertical part 221 protruding vertically upward and a guide part horizontal part 222 bent from the end of the guide part vertical part 221 to extend horizontally , The controller 100 is formed in a length corresponding to a partial length in the front-rear direction and distributed on the flange 200, and the "b" shape of the rail part 120 and the "a" shape of the guide part 220 "The controller 100 may be formed to be slidable in the front-rear direction by interlocking with each other.

At this time, the guide portion engaging protrusion 125, when the flange connector 110 and the terminal portion 210 are coupled, the front end of the guide portion engaging protrusion 125 is locked to the rear end of the guide portion 220, and the controller In order to permit the rear sliding movement of 100 and to regulate the forward sliding movement, the rear end of the guide part engaging protrusion 125 is formed in an inclined shape, and the front end of the guide part engaging protrusion 125 is vertical to the guide. The sub-engagement protrusion 125 may be formed in an inclined shape with an inclination angle greater than the shear inclination angle.

In addition, the fuel pump module may be formed such that the controller 100 is spaced apart from the flange 200 in the vertical direction by the rail portion vertical portion 121.

In addition, the controller body 150 covers an open surface of the storage unit 151 having an open upper surface and forming an inner space, the electric unit accommodated in the internal space of the storage unit 151, and the storage unit 151. It includes a heat dissipation part 152 to seal, and a circumferential upper surface of the receiving part 151 and a circumferential lower surface of the heat dissipating part 152 may be coupled by laser fusion.

At this time, the controller body 150 is formed on one side of the receiving unit 151 to communicate the inner space and the outside of the receiving unit 151, but the pressure of the inner space of the receiving unit 151 is equal to or greater than a preset pressure. When this is the case, it may include an exhaust unit 153 formed to discharge air to the outside.

According to the present invention, the controller is modularized and formed integrally to ensure the advantage of productivity and assembly, while the controller itself is detachable from the fuel pump module flange, making it easy to repair or replace in case of controller failure or damage. There is a great effect that makes it possible. Conventionally, if an abnormality occurs in the controller due to the inability to attach or detach the controller, the entire fuel pump module has to be replaced, resulting in significant inconvenience and economic loss during operation, but according to the present invention, the user only needs to repair or replace the controller. It has the effect of greatly improving convenience and economy.

Further, according to the present invention, there is a great effect of having a strong response to vibration and shock by including a double and triple locking structure while being easily attached and detached. In particular, in the fuel pump module provided in the vehicle, the effect of being strong against vibration and shock, which is a major cause of component damage, results in an effect of improving the life of the fuel pump module itself.

In addition, according to the present invention, through structural improvement of the fuel pump module that accommodates the substrate in the storage part of the controller, covers it with a heat dissipation part, and performs laser fusion, thereby realizing complete sealing of the inside of the controller, the penetration of oil vapor, etc. There is a great effect that can be effectively prevented. In addition, by forming an airtight structure in the coupling structure between terminals, there is also an effect of double blocking the penetration of oil vapor into the controller.

In addition, according to the present invention, in addition to securing ease of attachment and detachment and airtightness as described above, it is made to be applicable to various products by using an appropriate adapter, and as a result, there is a great effect of obtaining high expandability and compatibility.

1 is a perspective view of the front side assembly of the fuel pump module of the present invention.
Figure 2 is a perspective view of the rear side assembly of the fuel pump module of the present invention.
3 is an exploded perspective view of the front side of the fuel pump module of the present invention.
Figure 4 is an exploded perspective view of the rear side of the fuel pump module of the present invention.
5 is a front perspective view of the controller of the present invention.
Figure 6 is a rear perspective view of the controller of the present invention.
7 is a front perspective view of the flange of the present invention.
Figure 8 is a rear perspective view of the flange of the present invention.

Hereinafter, a fuel pump module capable of attaching and detaching a controller according to the present invention having the configuration as described above will be described in detail with reference to the accompanying drawings.

[1] Basic configuration

The fuel pump module of the present invention is basically a fuel pump module in which the controller 100 is detachably formed on a flange 500 that fixes the fuel pump and the reservoir cup to the fuel tank. At this time, the fuel pump module of the present invention is capable of being easily attached and detached between the controller and the flange, and is resistant to vibration and shock, and secures airtightness for preventing oil vapor penetration, while securing a structure with high expandability and compatibility. To this end, in the fuel pump module of the present invention, a structure is introduced so that the coupling between the controller and the flange is made by sliding movement in the front-rear direction.

1 and 2 are front/rear assembly perspective views of the fuel pump module of the present invention, and FIGS. 3 and 4 are front/rear exploded perspective views. 5 and 6 are front/rear perspective views of the controller of the present invention, and FIGS. 7 and 8 are front/rear perspective views of the controller of the present invention. In particular, as can be intuitively seen from the exploded perspectives of FIGS. 3 and 4, the fuel pump module of the present invention is coupled with the flange 200 by sliding the controller 100 in the front and rear direction. In more detail, first, a terminal portion 210 is formed on the flange 200 so that the terminal 213 protrudes forward. At this time, the controller 100 is formed to be slidable in the front-rear direction, and by sliding backward as shown in FIGS. 3 and 4, the flange connector 110 formed at the rear end of the controller 100 is Combined with 210.

First, a detailed structure of the basic configuration of the controller 100 and the terminal unit 210 will be described in more detail.

The controller 100, as shown in Figs. 3 and 4, is formed in a shape extending in the front-rear direction, and includes a controller body 150 in which an electric unit for signal transmission and reception and control calculation is accommodated, and the controller body 150 It includes a vehicle-side connector 130 formed in the front. At this time, the rail part 120 may be formed to extend over the entire controller body 150 on the controller body 150. In addition, the vehicle-side connector 130 is configured so that a cable connected to the vehicle central control unit can be connected, and the controller 100 is interlocked with the vehicle central control unit to control the fuel pump module.

The terminal part 210, as shown in Figs. 7, 8, etc., is formed in the shape of a protruding part 211 protruding upward of the flange 200, a case with an open front surface, and formed on the upper end of the protruding part 211 It includes a fitting portion 212 formed to fit the rear end of the flange connector 110 to the open front. At this time, the terminal 213 connected to the fuel pump to transmit and receive signals is formed in the fitting part 212. Since the fitting part 212 is formed in a case shape with an open front surface, and the terminal 213 protrudes from the front bottom of the fitting part 212, structurally, the fitting part 212 is the terminal 213 ) To surround and protect.

In addition, a description will be given of a coupling structure by sliding forward and backward between the controller 100 and the flange 200 as follows. In the fuel pump module of the present invention, the controller 100 includes a pair of rail units 120 extending in the front and rear directions on both left and right sides of the lower end of the controller 100. In addition, the flange 200 includes at least a pair of guide portions 220 formed on the flange 200 so that the rail portion 120 is fitted and slidable.

As shown in FIGS. 5 and 6, the rail part 120 is bent from the end of the vertical rail part 121 and the vertical rail part 121 protruding vertically below the controller 100 to be horizontally It is formed to have a "b"-shaped cross-section including the horizontal rail portion 122 formed to extend. In addition, the rail unit 120 is formed to extend to a length corresponding to the total length in the front and rear direction of the controller 100. The rail part vertical part 121 also serves to allow the controller 100 to be spaced apart from the flange 200 in the vertical direction. By doing so, the heat generated from the controller 100 is transferred to the flange 200 Through it can be prevented from being transferred to the fuel in the fuel pump. Of course, the rail portion vertical portion 121 also serves to match the height of the controller 100 so that the rear end of the controller 100 is smoothly coupled to the terminal portion 210.

As shown in FIGS. 7 and 8, the guide part 220 is bent from the end of the guide part vertical part 221 and the guide part vertical part 221 protruding vertically above the flange 200 to be horizontally It is formed to have a cross-section in the shape of a "L" including the horizontal guide portion 222 formed to extend. In addition, the controller 100 is formed to have a length corresponding to a partial length in the front-rear direction and is distributed on the flange 200. 7, 8, etc., it is shown that two pairs of the guide parts 220 are formed, but the present invention is not limited thereto. However, when one pair of the guide units 220 is formed, the direction may be changed during the sliding movement process, and when three pairs of the guide units 220 are formed, the guide unit 220 is excessively large during the assembly process. Rather, it may cause inconvenience, so it is preferable that two pairs of the guide units 220 are formed as shown.

The "b" shape of the rail part 120 formed as described above and the "a" shape of the guide part 220 are interdigitated with each other, so that the controller 100 is guided by the guide part 220 As a result, stable sliding movement in the front and rear direction is possible.

As described above, in the present invention, the controller 100 is completely modular, so that only the controller 100 can be replaced in the fuel pump module. In particular, the controller 100 and the terminal portion 210 of the flange 200 are front and rear. It is attached and detached by sliding movement in the direction. In the case of a coupling structure using a rotational motion, it has been explained that vibration or shock cannot be completely absorbed due to the inevitable separation between parts in order to facilitate the rotational motion. In the present invention, the separation between parts necessary for attachment and detachment is basically minimized through a coupling structure using a sliding movement, and at the same time, it has a strong fixing force so as not to damage the parts due to vibration or shock. Specifically, the fuel pump module of the present invention has a fixed structure between the controller and the flange, which will be described in more detail later in [2] The fixed structure between the controller and the flange .

On the other hand, in the fuel pump module of the present invention, since the controller and the flange are detachable and detachable between the controller and the flange, there is a high possibility that the oil vapor penetrates into the controller compared to the form in which the controller and the flange are integrated. In order to solve this problem, a controller airtight structure is formed in the fuel pump module of the present invention, which will be described in more detail later in [3] Controller airtight structure .

In addition, although the fuel pump module of the present invention is basically premised to include a controller, the range of use can be extended so that it can be used even in a model operating without a controller, thereby improving compatibility. This will be described in more detail later in [4] Expansion and Compatibility Structure .

[2] Fixed structure between controller and flange

Hereinafter, the fixing structure between the controller and the flange will be described in more detail.

The fuel pump module of the present invention performs fixing using a double locking structure so that smooth attachment/detachment between the controller and the flange is possible and a solid fixing force can be secured during assembly. Specifically, they are a terminal portion engaging structure formed on the terminal portion side and a guide portion engaging structure formed on the guide portion side. Each of them will be described in more detail as follows.

The terminal portion engaging structure includes a terminal portion engaging hook 115 formed on the flange connector 110 and a terminal portion engaging protrusion 215 formed in the terminal portion 210. As shown in FIGS. 5, 6, and the like, at least one pair of the terminal portion engaging hooks 115 are formed to protrude rearward at the left and right ends of the rear end of the flange connector 110. As shown in FIGS. 7, 8, and the like, at least one pair of the terminal portion engaging protrusions 215 is formed on the left and right sides of the terminal portion 210, respectively. In the drawing, the terminal portion locking hook 115 and the terminal portion locking projection 215 are shown as being formed in pairs, respectively, but of course, two or more pairs may be arranged in parallel in the vertical direction.

When the flange connector 110 and the terminal portion 210 are coupled, the terminal portion locking hook 115 formed as described above is caught and fixed to the terminal portion locking projection 215, thereby fixing the terminal portion locking structure. At this time, as shown in FIGS. 3 and 4, the flange connector 110 is fitted into the terminal part 210 by moving the controller 100 to the rear, so that the flange connector 110 and the terminal part 210 are coupled. However, in order to ensure that the process until the coupling is made smoothly and at the same time, the coupling is firmly maintained after the coupling is made, the controller 100 permits the rear sliding movement and regulates the forward sliding movement. It is desirable to do. To this end, the terminal portion engaging projection 215, as shown in Figs. 7, 8, etc., the front end of the terminal portion engaging projection 215 is formed in an inclined shape, and the rear end of the terminal engaging projection 215 is a vertical shape ( The example shown in FIGS. 7 and 8) to the terminal portion engaging protrusion 215 may be formed in an inclined shape at an angle greater than the rear end inclination angle.

The guide portion engaging structure includes a guide portion engaging projection 125 formed on the rail portion 120. The guide portion engaging protrusion 125 is formed to protrude in the left and right direction at a predetermined position on the rail unit 120 as shown in FIGS. 5 and 6. Since the guide portion engaging projection 125 is formed to be caught by the guide portion 120 as can be understood by its name, the position or number of the guide portion engaging projection 125 is determined by the guide portion 120 It is obvious that it corresponds to the location or number of ).

When the flange connector 110 and the terminal portion 210 are coupled, the front end of the guide portion engaging projection 125 is caught and fixed to the rear end of the guide portion 220, thereby fixing the guide portion engaging structure. At this time, as in the terminal engaging structure, in order to ensure that the process until the coupling is made smoothly and the coupling can be firmly maintained after the coupling is made, the rear sliding movement of the controller 100 is permitted. And it is desirable to regulate the forward sliding movement. To this end, the guide portion engaging projection 125, the rear end of the guide portion engaging projection 125 is formed in an inclined shape, and the front end of the guide portion engaging projection 125 is vertical to the guide portion engaging projection 125 ) It can be formed in an inclined shape with an inclination angle greater than the shear inclination angle.

Previously, in the case of the terminal portion engaging protrusion 215, since the terminal portion engaging hook 115 moves backward toward the terminal portion engaging protrusion 215, the front end is inclined (so that the hook can be smoothly caught) ( The rear end is formed vertically (so that it does not come off after the hook is caught). In the case of the guide part engaging protrusion 125, since the guide part engaging protrusion 125 moves backward and is caught after passing through the guide part 220, the terminal part engaging protrusion 215 is different from the (guide It is preferable that the rear end is inclined so that it passes smoothly through the part and the front end is formed vertically (so that it does not fall out after being caught in the guide part). However, it is more necessary to apply the difference in shape between the front/rear ends of the protrusion because the respective portions of the terminal portion locking structure are relatively large compared to the respective portions of the guide portion locking structure and thus deformation may be more difficult. In the case of the structure, since it is relatively small and can be easily deformed, the difference in shape between the front and rear ends of the protrusion is not necessarily applied. 5 and 6 illustrate an example in which the difference in shape between the front and rear ends of the protrusion is not applied, that is, the front and rear ends of the guide portion engaging protrusion 125 are formed in an inclined shape at the same inclination angle.

[3] controller airtight structure

Hereinafter, the hermetic structure of the controller will be described in more detail.

The fuel pump module of the present invention adopts a variety of airtight structures to prevent inevitable problems, that is, penetration problems such as oil vapor, as the controller and the flange are not formed integrally but are formed detachably. Are doing. Specifically, it is an airtight structure at the joint portion between the controller and the flange and an airtight structure at the controller itself. Each of them will be described in more detail as follows.

The airtight structure at the joint between the controller and the flange will be described. The controller-flange coupling portion is a coupling portion between the flange connector 110 and the terminal portion 210. A slight gap is inevitably formed between the flange connector 110 and the terminal part 210 for smooth attachment and detachment. On the other hand, the part where oil vapor is likely to penetrate is the gap around the terminal in the end, and through the gap formed between the flange connector 110 and the terminal part 210, the gap around the terminal communicates with the external environment. , There is a possibility of penetration of oil vapor. Therefore, if the gap formed between the flange connector 110 and the terminal part 210 is well closed, the possibility of penetration of oil vapor or the like can be greatly reduced.

In the present invention, as shown in Figs. 5 and 6, the airtight rib 111 and the airtight O-ring 112 are used to close this gap. The airtight rib 111 is formed to protrude around the flange connector 110 in the circumferential direction. When the airtight rib 111 is formed, when the flange connector 110 is fitted into the terminal portion 210 (more specifically, the fitting portion 212), the outer end of the airtight rib 111 is Since it is tightly fitted to the inner surface of the fitting portion 212, the gap can be almost eliminated. The hermetic O-ring 112 is made of an elastic material that is more free of deformation, and the hermeticity of the hermetic O-ring 112 may be further improved by being disposed in front or rear of the hermetic rib 111.

The airtight structure in the controller itself will be described. Even if the airtightness of the joint between the controller and the flange is well established, if there is a gap in the controller itself, there is still a risk that oil vapor will penetrate into the gap and cause damage or malfunction of the electrical parts in the controller. Therefore, in the present invention, an airtight structure that fundamentally prevents penetration of oil vapor or the like is applied to the controller itself.

In the present invention, the controller body 150, as shown in Figs. 5 and 6, includes an accommodating unit 151, an electric unit, and a heat dissipating unit 152 (the electric unit is inside the controller body 150). Accepted and not visible on the drawing). The storage unit 151 is formed in a shape of a housing in which an upper surface is opened and an internal space is formed, and the electric device is accommodated in the internal space of the storage unit 151. The heat dissipation part 152 covers and seals the open surface of the fraudulent receiving part 151, and at this time, there is a possibility of penetration of oil vapor into the gap between the receiving part 151 and the heat dissipating part 152. have. In the present invention, in order to solve this problem, the upper surface of the circumference of the receiving part 151 and the lower surface of the circumferential surface of the heat dissipating part 152 are coupled by laser fusion. By doing this, the gap between the receiving part 151 and the heat dissipating part 152 can be completely eliminated.

In the controller formed integrally with the flange, the heat dissipation unit serves as a lid of the storage unit, so to speak, and is made to open the heat dissipation unit and replace the electric unit when a failure occurs in the electric unit. However, in the present invention, since the controller is detachable from the flange, it is necessary to replace the controller itself when a failure occurs in the electronic part of the controller. Therefore, there is no need to make the storage part and the heat dissipation part of the controller separate, and thus there is no problem in the operation of the fuel pump module even if laser welding is performed so that the gap between the receiving part and the heat dissipating part completely disappears as described above.

On the other hand, in the case where the receiving part of the controller body 150 and the heat dissipating part are combined so as not to be disassembled, the following problems may occur. As described above, the electric device is accommodated in the inner space of the storage unit, and a liquid resin or the like for smoothing heat transfer to the heat dissipation unit may be potted in the space above the electric unit, that is, the space at the heat dissipation unit. -It can be formed as an empty space to prevent unnecessary heat transfer between flanges. In other words, this empty space is filled with air.When heat is generated in the electric part, the volume increases as the air is heated, and if the storage part and the heat dissipation part are combined so that it is completely sealed, the air cannot escape. There is a risk of excessive increase in pressure in the inner space of payment. Since this pressure increase can cause damage or breakage of parts, it is necessary to cope with this. As a countermeasure for preventing an excessive increase in pressure in the inner space of the controller body 150, the controller body 150 is formed on one side of the receiving unit 151 to prevent the inner space and the outside of the receiving unit 151. It communicates with, but may include an exhaust unit 153 formed to discharge air to the outside when the pressure in the interior space of the receiving unit 151 is equal to or higher than a preset pressure.

[4] Expansion and compatibility structure

Hereinafter, the expansion and compatibility structure will be described in more detail.

As described above, in the present invention, the flange connector 110 of the controller 100 slides in the front-rear direction and is fitted to the terminal part 210, thereby establishing a connection between the fuel pump and the controller. In addition, the controller 100 is provided with the vehicle-side connector 130 that can be connected to the central control device of the vehicle by a cable. That is, in the fuel pump-controller-central control device, the fuel pump-controller is connected by the terminal part-flange connector, and the controller-central control device is connected by the vehicle-side connector-cable, so that overall connection is made to each other. The fuel pump is controlled under appropriate control distribution between the central control unit and the controller.

In this case, depending on the type of vehicle, the fuel pump may be directly controlled without the controller 100. When the fuel pump is directly controlled by the vehicle's central control unit, the cable (connected to the central control unit) is formed to be directly connected to the fuel pump module, and in general, such a cable consists of 4 pins. It consists of 4 pins. Meanwhile, as in the present invention, when the fuel pump has a separate controller, the fuel pump terminal portion connected to the controller is generally formed of 9 pins. As described above, it is natural that it is impossible to apply a fuel pump module in which the controller is integrally formed with a flange because the number of pins itself is different and thus connection is impossible to a type of vehicle that does not require a controller as described above. That is, the fuel pump module product with the controller and the fuel pump module product without the controller are not compatible with each other.

On the other hand, in the fuel pump module of the present invention, since the controller is formed so as to be easily detachable from the flange, it is also possible to easily remove the controller. At this time, there remains a problem described above, that is, the number of pins itself differs between the fuel pump module products with/without a controller, which is formed to be connectable with a cable (connected to the central control unit of the vehicle) in the terminal part 210. Just plug in the adapter and you're done. That is, the fuel pump module of the present invention is naturally applicable to a vehicle using a fuel pump module product with a controller, and even in a vehicle using a fuel pump module product without a controller, it is also smooth by removing the controller and inserting an adapter. It is possible to apply. As such, the fuel pump module of the present invention can be applied to various vehicles, and thus has much higher expandability and compatibility than the controller-flange integrated fuel pump module.

The present invention is not limited to the above-described embodiments, and the scope of application thereof is diverse, as well as anyone with ordinary knowledge in the field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Of course, various modifications are possible.

100: controller
110: flange connector 115: terminal hook
111: airtight rib 112: airtight O-ring
120: rail part 125: guide part locking projection
121: rail part vertical part 122: rail part horizontal part
130: vehicle side connector
150: controller body 151: storage unit
152: radiator 153: exhaust
200: flange
210: terminal portion 215: terminal portion locking projection
211: protrusion 212: fitting
213: terminal
220: information
221: guide part vertical part 222: guide part horizontal part

Claims (11)

In the fuel pump module in which the controller 100 is detachably formed on the flange 200 for fixing the fuel pump and the reservoir cup to the fuel tank,
A terminal portion 210 formed on the flange 200 so that the terminal 213 protrudes forward is formed, and the controller 100 slides in the front-rear direction to form a flange connector 110 formed at the rear end of the controller 100. ) Is formed to be coupled to the terminal portion 210,
At least one pair of terminal portion engaging hooks 115 protruding rearward from the left and right ends of the flange connector 110 and at least one pair of terminal portion engaging protrusions 215 protruding from the left and right sides of the terminal portion 210, respectively. It includes, the terminal portion engaging structure formed to be fixed by engaging the terminal portion engaging hook 115 and the terminal portion engaging projection 215 to each other;
The controller 100 is formed on the guide portion engaging projection 125 and the flange 200 protruding in the left and right directions at a preset position on a pair of rail units 120 extending in the front and rear directions on both sides of the lower end of the controller 100 And at least a pair of guide portions 220 formed to be slidably movable by being fitted with the rail portion 120, and formed to be fixed by locking the guide portion engaging projection 125 to the guide portion 220 Guide part locking structure;
A fuel pump module comprising a.
The method of claim 1, wherein the controller (100),
A controller body 150 formed in a form extending in the front and rear direction and receiving an electric part for signal transmission and reception and control calculation therein, and a vehicle-side connector 130 formed in front of the controller body 150,
The rail part 120 is a fuel pump module, characterized in that extending over the entire controller body 150 on the controller body 150.
The method of claim 1, wherein the terminal portion 210,
A protrusion 211 protruding upward from the flange 200,
A fitting portion 212 formed in the form of a case with an open front side, formed on the upper end of the protrusion 211, and formed to fit the rear end of the flange connector 110 into the open front,
And the terminal 213 formed in the fitting part 212 and connected to the fuel pump to transmit and receive signals.
The method of claim 1, wherein the terminal engaging projection 215,
When the flange connector 110 and the terminal portion 210 are coupled, the terminal portion engaging hook 115 is engaged and fixed to the terminal portion engaging protrusion 215,
To allow the rear sliding movement of the controller 100 and to regulate the forward sliding movement,
The front end of the terminal portion engaging protrusion 215 is formed in an inclined shape, and the rear end of the terminal portion engaging protrusion 215 is formed in a vertical shape or inclined with an inclination angle greater than the rear end inclination angle Fuel pump module, characterized in that.
The method of claim 1, wherein the controller (100),
A fuel pump module comprising an airtight rib 111 protruding around the flange connector 110 in the circumferential direction.
The method of claim 5, wherein the controller (100),
A fuel pump module comprising an airtight O-ring 112 disposed in front or rear of the airtight rib 111.
The method of claim 1, wherein the fuel pump module,
The rail part 120 is a rail part vertical part 121 protruding vertically downward from the controller 100 and a rail part horizontal part 122 formed to extend horizontally by bending from the end of the rail part vertical part 121 It has a "b"-shaped cross section including, and is formed to extend to a length corresponding to the overall length in the front and rear direction of the controller 100,
The guide part 220 is a guide part vertical part 221 protruding vertically above the flange 200, and a guide part horizontal part 222 formed to extend horizontally by bending from the end of the guide part vertical part 221 It has a cross section of a "L" shape including, and is formed to have a length corresponding to a partial length in the front and rear direction of the controller 100 to be distributed and formed on the flange 200,
Characterized in that the "b" shape of the rail part 120 and the "b" shape of the guide part 220 are interdigitated and fitted, so that the controller 100 is formed to be slidable in the front and rear direction Fuel pump module.
The method of claim 7, wherein the guide portion engaging projection (125),
When the flange connector 110 and the terminal portion 210 are coupled, the front end of the guide portion engaging projection 125 is caught and fixed to the rear end of the guide portion 220,
To allow the rear sliding movement of the controller 100 and to regulate the forward sliding movement,
The rear end of the guide part catching protrusion 125 is formed in an inclined shape, and the front end of the guide part catching protrusion 125 is inclined from a vertical shape to an inclination angle of an angle greater than the shear inclination angle Fuel pump module, characterized in that formed of.
The method of claim 7, wherein the fuel pump module,
The fuel pump module, characterized in that the controller (100) is formed to be spaced apart from the flange (200) in the vertical direction by the rail part vertical part (121).
The method of claim 2, wherein the controller body 150,
Includes a storage unit 151 having an open upper surface and forming an inner space, the electric unit accommodated in the interior space of the storage unit 151, and a heat dissipation unit 152 covering and sealing the open surface of the storage unit 151 And
A fuel pump module, characterized in that the upper circumferential surface of the receiving unit 151 and the lower circumferential surface of the heat dissipating unit 152 are coupled by laser fusion.
The method of claim 10, wherein the controller body 150,
It is formed on one side of the receiving unit 151 to communicate the inner space and the outside of the receiving unit 151, and is formed to discharge air to the outside when the pressure of the inner space of the receiving unit 151 is equal to or higher than a preset pressure. Fuel pump module, characterized in that it comprises an exhaust (153).

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